Document:

EX-10.1

EXHIBIT 10.1

INTERDIGITAL, INC.

TERM SHEET FOR RESTRICTED STOCK

(Supplemental Award)

InterDigital, Inc. (the “Company”), hereby grants to Grantee named below the number of shares of
restricted stock specified below (this “Award”), upon the terms and subject to the conditions set
forth in this Term Sheet, the Plan specified below (the “Plan”) and the Standard Terms and
Conditions (the “Standard Terms and Conditions”) adopted under the Plan and provided to Grantee,
each as amended from time to time. Each share of restricted stock subject to this Award represents
the right to receive one share of the Company’s Common Stock, subject to the conditions set forth
in this Term Sheet, the Plan and the Standard Terms and Conditions. This Award is granted pursuant
to the Plan and is subject to and qualified in its entirety by the Standard Terms and Conditions.
Capitalized terms not defined herein have the meanings set forth in the Plan or Standard Terms and
Conditions.

	 	 	 
	Plan:
	 	This Award is granted pursuant to the

Company’s 2009 Stock Incentive Plan.

	 
	 	 

	Name of Grantee:
	 	

	 
	 	

	Grant Number:
	 	

	 
	 	

	Grant Date:
	 	

	 
	 	

	Number of Shares of Restricted Stock

Subject to This Award:
	 	

	 
	 	

	Restrictions:
	 	Grantee shall not be permitted to

sell, transfer, pledge or assign the

restricted stock during the

Restricted Period.

	 
	 	 

	Restricted Period:
	 	The Restricted Period begins on the

Grant Date and ends on the first

anniversary of the Grant Date.

	 
	 	 

By accepting this Term Sheet, Grantee acknowledges that he or she has received and read, and agrees
that this Award shall be subject to, the terms of this Term Sheet, the Plan and the Standard Terms
and Conditions.

	 
	INTERDIGITAL, INC.

	BY:     

	William J. Merritt, President and CEO

	 
	GRANTEEEX-10.2

EXHIBIT 10.2

INTERDIGITAL, INC.

STANDARD TERMS AND CONDITIONS FOR RESTRICTED STOCK

(Supplemental Award)

These Standard Terms and Conditions apply to any Award of restricted stock granted to employees of
the Company on or after June 4, 2009 under the InterDigital, Inc. 2009 Stock Incentive Plan and its
amendments (the “Plan”), which are evidenced by a Term Sheet or an action of the Administrator that
specifically refers to these Standard Terms and Conditions.

1. Definitions. Capitalized terms not defined herein shall have the meanings set
forth in either the Term Sheet or the Plan. As used herein:

(a) “Account” means a bookkeeping account reflecting Grantee’s interest in
restricted stock.

(b) “Fair Market Value” means the closing price of a Share on The NASDAQ Stock Market,
as reported in The Wall Street Journal on the relevant valuation date, or, if there is no trading
on that date, on the next preceding trading date.

(c) “Disability” means (i) a disability entitling Grantee to long-term disability
benefits under the applicable long-term disability plan of the Company (or any Subsidiary if
Grantee is employed by such Subsidiary) or (ii) if Grantee is not covered by such a plan, a
physical or mental condition or illness that renders Grantee incapable of performing his/her duties
for a total of 180 days or more during any consecutive 12-month period.

(d) “Restricted Period” means the period beginning on the Grant Date and ending on the
Transferability Date.

(e) “Transferability Date” means the earliest of (i) the first anniversary of the
Grant Date, (ii) the consummation of a Change in Control, or (iii) Grantee’s termination of
employment because of death or Disability.

2. Grant of Restricted Stock.

(a) The Company has granted to Grantee named in the Term Sheet provided to said Grantee
herewith (the “Term Sheet”) an award of a number of shares of restricted stock (the “Award”)
specified in the Term Sheet. Each share of restricted stock represents the right to receive one
share of the Company’s Common Stock, upon the terms and subject to the conditions set forth in the
Term Sheet, these Standard Terms and Conditions, and the Plan, each as amended from time to time.
For purposes of these Standard Terms and Conditions and the Term Sheet, any reference to the
Company shall, unless the context requires otherwise, include a reference to any Subsidiary.

(b) The Company shall maintain an Account for Grantee reflecting the number of shares of
restricted stock credited to Grantee hereunder.

3. Restrictions on Restricted Stock. Subject to the terms and conditions set forth
herein and in the Plan, during the Restricted Period Grantee shall not be permitted to sell,
transfer, pledge or assign the restricted stock subject to the Award except by will or by the laws
of descent and distribution. No such transfer occurring as a result of Grantee’s death shall be
effective to bind the Company unless the Administrator shall have been furnished with a copy of the
applicable will or such other evidence as the Administrator may deem necessary to establish the
validity of the transfer.

4. Lapse of Restrictions. Subject to the terms and conditions set forth herein and in
the Plan, the restrictions set forth in Section 3 on each Share subject to the Award shall lapse on
the Transferability Date.

5. Delivery of Shares. Within the later of a reasonable time after the
Transferability Date or ten (10) business days after written demand from Grantee, the Company
shall, without payment from Grantee (or the person to whom ownership rights may have passed by will
or the laws of descent and distribution) for the restricted stock, deliver to Grantee (or such
other person) a certificate for the restricted stock subject to the Award without any legend or
restrictions, except for such restrictions as may be imposed by the Administrator, in its sole
judgment, under Section 9. The Company may condition delivery of certificates for Shares upon the
prior receipt from Grantee (or such other person) of any undertakings that it may determine are
required to assure that the certificates are being issued in compliance with federal and state
securities laws. The right to payment of any fractional Shares shall be satisfied in cash,
measured by the product of the fractional amount times the Fair Market Value of a Share on the
Transferability Date.

6. Rights as Shareholder. During the Restricted Period, Grantee shall have the right
to vote the restricted stock and to receive cash and stock dividends with respect to the restricted
stock.

7. Absence of Tax Gross-Up Payment. There shall be no tax gross-up on the restricted
stock.

8. Notices. Any notice to the Company shall be made in care of the Administrator to
the office of the General Counsel, at the Company’s main office in King of Prussia, Pennsylvania.
All notices shall be deemed to have been given when hand-delivered or mailed, first class postage
prepaid, and shall be irrevocable once given.

9. Securities Laws. The Administrator may from time to time impose any conditions on
the restricted stock as it deems necessary or advisable to comply with applicable securities laws.

10. Award Not to Affect Service. The award granted hereunder shall not confer upon
Grantee any right to continue service as an employee and/or director of the Company.

11. Miscellaneous.

(a) The address for Grantee to which notice, demands and other communications to be given or
delivered under or by reason of the provisions hereof shall be Grantee’s address as reflected in
the Company’s personnel records.

(b) Grantee authorizes the Company to withhold in accordance with applicable law from any
compensation payable to him/her any taxes required to be withheld by federal, state or local law in
connection with this Award. The Administrator may, in its discretion, permit a Grantee (or the
person to whom ownership rights may have passed by will or the laws of descent and distribution) to
pay all or a portion of the amount required by the Company for such tax withholding, at such time
and in such manner as the Administrator shall deem to be appropriate, including by authorizing the
Company to withhold from the Shares to be delivered in settlement, or by agreeing to surrender to
the Company on or about the date such tax liability is determinable, Shares having a Fair Market
Value on such date equal to the amount of such tax liability or a specified portion of such tax
liability.

(c) Any provision for distribution in settlement of Grantee’s Account hereunder shall be by
means of bookkeeping entries on the books of the Company and shall not create in Grantee or any
person to whom ownership right may have passed any right to, or claim against any specific assets
of the Company, nor result in the creation of any trust or escrow account for Grantee or any person
to whom ownership rights may have passed. Grantee (or any other person entitled to a distribution
hereunder) shall be a general creditor of the Company.

(d) These Standard Terms and Conditions shall inure to the benefit of and be binding upon the
parties hereto and their respective permitted heirs, beneficiaries, successors and assigns.

(e) In addition to these Standard Terms and Conditions, the Award shall be subject to the
terms of the Plan and the Term Sheet, which are incorporated into these Standard Terms and
Conditions by this reference. In the event of a conflict between the terms and conditions of these
Standard Terms and Condition and the Plan, the Plan controls.

(f) Any question concerning the interpretation of these Standard Terms and Conditions, the
Term Sheet or the Plan, any adjustments required to be made hereunder, and any controversy that may
arise under these Standard Terms and Conditions, the Term Sheet or the Plan shall be determined by
the Administrator in its sole and absolute discretion. All decisions by the Administrator shall be
final and binding.

(g) To the extent not preempted by federal law, the validity, performance, construction and
effect of this award shall be governed by the laws of the Commonwealth of Pennsylvania, without
giving effect to principles of conflicts of law.

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